Question

por favor ayudenmen es para mayana lasecuacion de primer grado a qui estan los ejemplos les pido de favor siiiiiiiiii ayudenmen
7(x+8)=-7 2(x+8)=40-x
5(2x-5)=-25 3(2x-5)=45+4x
6(3x-2)=24 3(8x-2)=4(5x+6)
9(3x-7)=18 2(3x-7)=4x-6
4(x-9)=-16 4(x-2)=12-x

2(x+8)=40-x
3(2x-5)=45+4x
3(8x-2)=4(5x+6)
2(3x-7)=4x-6
4(x-2)=12-x

Answer 1

7(x + 8) = - 7
7x + 56 = - 7
        7x = - 7 - 56
        7x = - 63
          x = - 63 : 7
          x = - 9

5(2x - 5) = - 25
10x - 25 = - 25
         10x = - 25 + 25
         10x = 0
             x = 0 : 10
             x = 0

6(3x - 2) = 24
18x - 12 = 24
        18x = 24 + 12
        18x = 36
            x = 36 : 18
            x = 2


9(3x - 7) = 18
27x - 63 = 18
         27x = 18 + 63
         27x = 81
             x = 81 : 27
             x = 3

4(x - 9) = - 16
4x - 36 = - 16
      4x  = - 16 + 36
      4x = 20
        x = 20 : 4
        x = 5


2(x + 8) = 40 - x
2x + 16 = 40 - x
2x + x = 40 - 16
     3x = 24
      x = 24 : 3
      x = 8

3(2x - 5) = 45 + 4x
6x - 15 = 45 + 4x
6x - 4x = 45 + 15
       2x = 60
         x = 60 : 2
         x = 30

3(8x - 2) = 4(5x +6)
24x - 6 = 20x + 24
24x - 20x = 24 + 6
           4x = 30
             x = 30 : 4
             x = 7,5

2(3x - 7) = 4x - 6
6x - 14   = 4x - 6
6x - 4x = - 6 + 14
       2x = 8
         x = 8 : 2
         x = 4

4(x - 2) = 12 - x
4x - 8 = 12 - x
4x + x = 12 + 8
      5x = 20
        x = 20 : 5
        x = 4